"Setiparous" Natural Recordings by Native Speakers
The word "setiparous" is a term used to describe something that has a single pair (set) of openings or parts, often referring to gills or other appendages.
In biology, setiparous can be used to describe certain types of organisms, such as aquatic plants or animals, that have a limited number of gill slits or other respiratory openings.
In general, the term is used to contrast with " )lugous" which means having multiple openings.